Pressure dependence of the Grüneisen parameter of sodium and potassium
Pressure dependence of the Grüneisen parameter of sodium and potassium
复制标题
钠和钾的 Grüneisen 参数的压力依赖性
DOI:
10.1016/0022-3697(80)90200-0
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发表时间:
1979
影响因子:
4
通讯作者:
G. Kennedy
中科院分区:
文献类型:
--
作者:
J. Ramakrishnan;G. Kennedy
Temperature changes associated with adiabatic pressure changes (∂T/∂P)shave been measured for sodium and potassium at room temperature (297 K) under hydrostatic pressures up to 32 kbar. For both metals a large decrease in the value of (∂T/∂P)sis observed as the pressure increases. The Grüneisen parameter γ is related to (∂T/∂P)sbyγ=Bs(∂T/∂T)s/TwhereBsis the adiabatic bulk modulus. Available data for the pressure dependence ofBsand the isothermal bulk modulusBTare used to predict the pressure and volume dependence of γ.